Exam 9: Atomic Physics

The frequency and energy of a photon are ______________ proportional.

When an electron is added to an atom,a(n)______________ ion is formed.

One prediction of Einstein's special theory of relativity is that objects traveling close to the speed of light

Which of these colors of light has photons of greatest energy?

The development of physics prior to about 1900 is called ______________ physics.

Calculate the energy,in joules,of photons of light with frequency 6.00 × 10¹⁴ Hz.

Microwave ovens work mainly by exciting molecules of the substance named ______________.

The principle that states that the exact position and the velocity of an object can never be known simultaneously is called ______________ principle.

Which of these colors of light has photons of lowest energy?

Wilhelm Roentgen discovered

The smaller the frequency of light,the smaller the ______________ of its photons.

The energy of a photon equals ______________ multiplied by the frequency.

The second excited state for an electron in a hydrogen atom would be where n equals ______________.

The lowest energy level of a hydrogen atom (n = 1)is called

When a hydrogen atom's electron goes from an energy state of n = 1 to n = 3,

The concept of matter waves reflects the observation that particles such as electrons sometimes act like ______________.

The color of the light in the visible region that has photons of the lowest energy is ______________.

The concept of the dual nature of light indicates that electromagnetic waves sometimes act like ______________.

According to the Bohr theory,the probability of finding a hydrogen atom's ground-state electron 0.053 nm from the proton is

Niels Bohr reasoned that a discrete line spectrum must be the result of a(n)______________ effect.